GDCM  2.0.18
gdcmImageHelper.h
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00001 /*=========================================================================
00002 
00003   Program: GDCM (Grassroots DICOM). A DICOM library
00004 
00005   Copyright (c) 2006-2011 Mathieu Malaterre
00006   All rights reserved.
00007   See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
00008 
00009      This software is distributed WITHOUT ANY WARRANTY; without even
00010      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00011      PURPOSE.  See the above copyright notice for more information.
00012 
00013 =========================================================================*/
00014 #ifndef GDCMIMAGEHELPER_H
00015 #define GDCMIMAGEHELPER_H
00016 
00017 #include "gdcmTypes.h"
00018 #include "gdcmTag.h"
00019 #include <vector>
00020 #include "gdcmPixelFormat.h"
00021 #include "gdcmPhotometricInterpretation.h"
00022 #include "gdcmSmartPointer.h"
00023 #include "gdcmLookupTable.h"
00024 
00025 namespace gdcm
00026 {
00027 
00028 class MediaStorage;
00029 class DataSet;
00030 class File;
00031 class Image;
00032 class ByteValue;
00048 class GDCM_EXPORT ImageHelper
00049 {
00050 public:
00056   static void SetForceRescaleInterceptSlope(bool);
00057   static bool GetForceRescaleInterceptSlope();
00058 
00065   static void SetForcePixelSpacing(bool);
00066   static bool GetForcePixelSpacing();
00067 
00071   static std::vector<unsigned int> GetDimensionsValue(const File& f);
00072 
00075   static PixelFormat GetPixelFormatValue(const File& f);
00076 
00081   static std::vector<double> GetRescaleInterceptSlopeValue(File const & f);
00082   static void SetRescaleInterceptSlopeValue(File & f, const Image & img);
00083 
00085   static std::vector<double> GetOriginValue(File const & f);
00086   static void SetOriginValue(DataSet & ds, const Image & img);
00087 
00090   static std::vector<double> GetDirectionCosinesValue(File const & f);
00096   // FIXME: There is a major issue for image with multiple IOP (eg. Enhanced * Image Storage).
00097   static void SetDirectionCosinesValue(DataSet & ds, const std::vector<double> & dircos);
00098 
00100   static std::vector<double> GetSpacingValue(File const & f);
00101   static void SetSpacingValue(DataSet & ds, const std::vector<double> & spacing);
00102 
00104   static bool ComputeSpacingFromImagePositionPatient(const std::vector<double> &imageposition, std::vector<double> & spacing);
00105 
00106   static bool GetDirectionCosinesFromDataSet(DataSet const & ds, std::vector<double> & dircos);
00107 
00108   //functions to get more information from a file
00109   //useful for the stream image reader, which fills in necessary image information
00110   //distinctly from the reader-style data input
00111   static PhotometricInterpretation GetPhotometricInterpretationValue(File const& f);
00112   //returns the configuration of colors in a plane, either RGB RGB RGB or RRR GGG BBB
00113   static unsigned int GetPlanarConfigurationValue(const File& f);
00114 
00115   //returns the lookup table of an image file
00116   static SmartPointer<LookupTable> GetLUT(File const& f);
00117 
00119   static const ByteValue* GetPointerFromElement(Tag const &tag, File const& f);
00120 
00121 protected:
00122   static Tag GetSpacingTagFromMediaStorage(MediaStorage const &ms);
00123   static Tag GetZSpacingTagFromMediaStorage(MediaStorage const &ms);
00124 
00125 private:
00126   static bool ForceRescaleInterceptSlope;
00127   static bool ForcePixelSpacing;
00128 };
00129 
00130 } // end namespace gdcm
00131 
00132 #endif //__gdcmSpacing_h

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